The Pulse

The Pulse

Go on an adventure into unexpected corners of the health and science world each week with award-winning host Maiken Scott. The Pulse takes you behind the doors of operating rooms, into the lab with some of the world's foremost scientists, and back in time to explore life-changing innovations. The Pulse delivers stories in ways that matter to you, and answers questions you never knew you had.

Episodes

August 15, 2025 26 mins

In the summer of 1976, when 2,000 people came to Philadelphia for a national convention of the American Legion, a strange illness gripped hundreds of attendees, and more than 30 people died. Symptoms included cough, shortness of breath, and fever. Was it a virus, bacteria, some sort of toxin? A major investigation was launched by the CDC — and the gathering in Philadelphia became forever tied to one of the greatest medical...

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Farming is a tough gig — physically, and mentally.  And it’s only gotten harder in recent years, with the impact of climate change and a shifting political and economic landscape. On this episode, we explore the connection between farming and health, and how these new challenges are affecting the well-being of the people who produce our food.

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August 7, 2025 49 mins

We live in a noisy world — from the din of busy restaurants, to the roar of traffic, to the clamor of partying neighbors. We’ll explore what researchers are learning about the connections between noise, hearing loss and our well-being.

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July 31, 2025 44 mins

On this episode, we explore the stories of people who survived extraordinary trials, from life-threatening illnesses to assault, and ask what came after survival. We’ll hear what it’s like to survive — and come back from — locked-in syndrome, explore the emotional roller coaster of being a young cancer survivor, and find out how one writer created guide to intimacy after sexual assault.

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July 30, 2025 35 mins

More than a hundred thousand people in the U.S. are on the national transplant list waiting for a life-saving organ. Hospitals across the country transplant more than 45,000 organs each year and there are rules and protocols about how it is supposed to go. But what happens when the process fails?

The New York Times investigative reporter Brian Rosenthal joins us to discuss some recent cases where doctors discovered that pat...

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Shame has a way of making us feel alone — like we’re the only ones in the world struggling with something. It can make us withdraw or feel depressed, out of control, and helpless. In the worst cases, it can destroy our self-esteem and even lead to self harm. But shame can also be a force for positive change, from enforcing social norms, to pushing us to improve our behaviors and circumstances. 

On this episode, we untangle ...

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July 17, 2025 49 mins

What comes to mind when you think of the ocean? Maybe a day at the beach — swimming in the waves, snorkeling through coral reefs, fishing, surfing, and sunsets that kiss the blue horizon. But Earth’s oceans are more than that; they’re our planet’s defining feature, its largest ecosystem, and the original source of all life. On this encore episode, we explore the engine that powers our planet.

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July 10, 2025 49 mins

We often think of sleep as the gas that keeps us running. We refuel at night — or whenever we can — run around all day until our tanks are empty, and then do it all over again the next day. But some sleep scientists would like us to think about sleep less as fuel, and more as a biological rhythm — one that’s as essential to our overall health as our heartbeat. On this episode, we’ll explore how finding your body’s unique s...

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We’ve only been able to harness the cold for our benefit for a little over 100 years, but innovations like refrigeration and air conditioning have completely transformed the way we live and eat. But it all comes at a cost — and not just financially. On this encore episode, how advances in cold technology have shaped our lives and changed the world. 

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Twenty-five years ago, President Bill Clinton announced a historic achievement: The completion of the first-ever survey of the human genome. The ceremony focused on the power of unity and collaboration — but, behind the scenes, the journey to this generational discovery had been marked by a bitter, cut-throat competition. We  look back at the race to decode the human genome — and who really won.

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June 19, 2025 49 mins

Friends make us laugh, they have our back, we share memories and stories. Beyond that, scientists are learning that friendships are key in keeping us healthy and thriving. On this episode, we explore why researchers say our brains are wired for connection, and why making our friendships a priority is one of the key pillars of longevity. We’ll get some research-backed advice on making new friends as adults and hear from two...

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June 12, 2025 49 mins

When someone wrongs us, getting revenge can feel like the only right move — the only way for us to balance the scales, to set the world right again. But the consequences can be disastrous, especially when payback becomes an all-consuming obsession. 


On this episode, we talk with lawyer-turned-researcher James Kimmel about his new book, "The Science of Revenge: Understanding the World's Deadliest Addiction — and How to O...

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Creativity plays a role in every facet of our lives, from childhood education, to everyday problem-solving, to the artistic works we enjoy and the innovations shaping our future. We explore what human creativity is, how it works, and some of the unexpected ways it’s remaking our world.

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May 29, 2025 48 mins
Before dinosaurs, before trees — even before Saturn had its rings – there were sharks. The fierce predators have been swimming in our oceans for hundreds of millions of years, standing the test of time as they survived all five of Earth's mass extinction events.

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May 22, 2025 49 mins
We all want the truth — but how exactly do we know when something's true? Often, the answer relates to evidence or proof, something capable of convincing us and easing our doubts. But whether or not different kinds of proof are accepted can vary widely by person and situation. On this episode, we explore proof and evidence, and how it affects our perception of what is true.

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Cybercrime has been around for as long as computers have — but over the past 20 years, it's exploded into a global threat, with staggering financial, political, and even personal consequences. We hear about the virus that ushered in the age of social engineering attacks, the history of cybercrime, and what led one man to become a hacker.

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May 8, 2025 48 mins
We often hear about the joys of motherhood — the incomparable sense of love, the magic of watching your kids discover the world, and the fulfillment of seeing them grow. But motherhood can also be a grind. On this encore episode, we take a look at the experience of modern motherhood — the challenges, the sometimes impossible standards, and the strategies that help moms thrive.

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For a long time, weightlifting was relegated to the realm of muscle heads — but today, it's popular among people of all ages and fitness levels. On this episode, we explore the history of weightlifting, some of its unexpected health and cognitive benefits, and why one woman says it changed her relationship with her body.

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The Vietnam War changed the world — and the lives of millions of people, who remain scarred by the traumas they experienced. On this episode, we mark the 50th anniversary of the war's end with stories that explore its lasting impact, from veterans struggling to reconcile the role they played in the deadly conflict, to Vietnamese refugees who are still working to put the pieces back together.

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April 23, 2025 34 mins
As the doors of the Vatican were opening, Bonnie Tsui sprinted through the galleries to the Sistine Chapel. She wanted to experience Michelangelo's frescoes alone for 10 minutes. She laid on the floor, looked up and cried. It's just one of many stories she weaves through her new book, "On Muscle: The Stuff That Moves Us and Why it Matters." On this episode, Tsui joins host Maiken Scott for a conversation about the importan...
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